On Sep 22, 2010, at 6:44 PM, Michael Hipp wrote: > On 9/22/2010 5:24 PM, Michael Bayer wrote: >> Here's the problem. The term "a blank record" is meaningless. > > Well, no, it's not. It's exactly what I get when I do new=Item() and > commit(). It's very well defined, precise, and repeatable. > >> Trying to make other tools guess this for you seems to be taking up days of >> your time - whereas a simple def set_myself_blank(self) method OTOH would >> take 30 seconds. > > I've been writing that 30 second method for 2 days now. So evidently it takes > longer than that :-) > > Problem is that model has about 75 columns in it. Each Column() has a > default='foo' parameter. And they are all unique to some extent. > > So I can *replicate* that information that is already there in a dict > somewhere that will have 75 lines in it and then maintain it in sync with the > "official" version. That is a severe violation of DRY and it will inevitably > lead to bugs and possibly data corruption. > > Avoiding such seems a worthy goal. > > I apologize, truly, that I have greatly overused your assistance on this. > Thank you. > > I have formulated a couple of hackish approaches that will probably work. > Guess I'm stuck with them. :-)
I guess, even though you've never stated this very clearly, that "a blank record" means, you'd like the "default" value for all columns reset to the "default" ? What if the "default" for a certain column is the current timestamp ? How are you going to recreate that ? Or somehting set by a sequence or other stored procedure where the original value is missing ? You probably don't have this issue but the idea of "a blank record" is still something somewhat specific to your situation. Anyway as I said, read through the columns on table.c and use default/server_default. -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To post to this group, send email to sqlalch...@googlegroups.com. To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en.
